#!/bin/sh

### 第二个参数
JAR_NAME="#{java_jar_name}"
### 第三个参数
JVM_OPTS="#{java_opts}"

JAVA_HOME="/etc/alternatives/jre_11"

#使用说明，用来提示输入参数
usage() {
    echo "Usage: sh 执行脚本.sh [start|stop|restart|status]"
    exit 1
}

#检查程序是否在运行
is_exist(){
    pid=$(${JAVA_HOME}/bin/jps -l|grep $JAR_NAME | awk '{print $1}')
#如果不存在返回1，存在返回0     
  if [[ ! -n "$pid" ]]; then
   return 1
  else
    return 0
  fi
}

#启动方法
start(){
  is_exist
  if [ $? -eq "0" ]; then 
    echo ">>> ${JAR_NAME} is already running PID=${pid} <<<" 
  else
    nohup "${JAVA_HOME}/bin/java" ${JVM_OPTS} -jar $JAR_NAME &
    echo ">>> start $JAR_NAME successed PID=$! <<<" 
   fi
  }

#停止方法
stop(){
  pid=$(${JAVA_HOME}/bin/jps -l|grep $JAR_NAME | awk '{print $1}')
  echo ">>> api PID = $pid begin kill <<<"
  kill -15 $pid
  sleep 2
  is_exist
  if [ $? -eq "0" ]; then 
    echo ">>> api 2 PID = $pid begin kill -9 $pid  <<<"
    kill -9 $pid
    sleep 1
    echo ">>> $JAR_NAME process stopped <<<"  
  else
    echo ">>> ${JAR_NAME} is not running <<<"
  fi  
}

#输出运行状态
status(){
  is_exist
  if [ $? -eq "0" ]; then
    echo ">>> ${JAR_NAME} is running PID is ${pid} $logOutputFormat <<<"
  else
    echo ">>> ${JAR_NAME} is not running $logOutputFormat <<<"
  fi
}

#重启
restart(){
  stop
  start
}

#根据输入参数，选择执行对应方法，不输入则执行使用说明
case "$1" in
  "start")
    start
    ;;
  "stop")
    stop
    ;;
  "status")
    status
    ;;
  "restart")
    restart
    ;;
  *)
    usage
    ;;
esac
exit 0
